I hear that our school team won the game. ________ it be true—It ________ be true. I noticed all of them looked unhappy when they came back.

The fat boyalways worries about _______ enough food _______ every day. How funny!

We hadn’t planned to meet. We met ________ chance.

you choose, you must stand by your decision.

下列各句中，加线的成语使用不正当的一项是 （ ）